Water-heater.



H PATENTED JULY so, 1907. H. c. LBYDORF. WATER HEATER.

APPLICATION FILED APB. 13,1905.

Attorneys cm, wAsnmm-rvu, n. (.1

HENRY C. LEYDORF, OF PERRYSBURG, OHIO.

Specification of Letters Patent.

WATER-HEATER.

Patented July 30', 1907;

Application filed April 13, 1905- Serial No. 255,381.

To all whomit may concern:

Be it known that I, HENRY C. LEYDORF, a citizen of the United States, residing at Perrysburg, in the county, of Wood and State of Ohio, have invented a new and useful Water-Heater, of which the following is a specification.

This invention relates to instantaneous water heaters, and among the objects of the invention are to simplify and improve the construction and operation of this class of devices.

Another object of the invention is to construct an improved device which with slight alteration may be utilized either for the instantaneous heating of water for laundry, bathing or other purposes, or which may be used in connection with a radiator or a system of radiators for house heating or other similar purposes.

Still another object of the invention is to provide an improved device of the class referred to which when used for water heating purposes may at the same time be utilized for the purpose of heating the apartment in which it is located by radiation from the shell or casing of the device.

With these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of embodiment of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that the right is reserved to any changes, alterations and modifications to which recourse may be had within the scope of the invention and without departing from the spirit or sacrificing the efiiciency of the same.

In said drawings, Figure l is a side elevation illustrating a preferred form of the invention applied to a radiator in position to be used in connection therewith for house heating purposes, parts of the casing having been broken away for the purpose of exposing the interior construction. Fig. 2 is a vertical sectional view taken on the plane indicated by the line 22 in Fig. I and in the direction indicated by the arrow. Fig. 3 is a detail view showing one of the heating pipes detached, together with the glands at the ends of said pipe. Fig. 4 is a top plan view of the water heating pipes, said View being partly in section, and illustrating a slight modification whereby the device is adapted to water heating purposes. Fig. 5 is a detail view illustrating a modified form of pipe which is utilized for water heating purposes only. Fig. 6 is a horizontal section through the upper portion of the heater, said section being taken in the direction of the arrow on line 6-6, Fig. 1.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

In carrying this invention into practical operation, the principal object of the invention, namely, to insure the rapid or, as it is sometimes termed, the instantaneous heating of water, is effected by conducting the water that is to be heated through a plurality of pipes of small diameter, said pipes being connected with headers through which connection is made with the source of supply and with the exit. Said pipes, which are of zigzag form for the purpose of increasing the heating surface, are disposed within the casing where they are subjected to the heating action of one or more gas jets or other heating means.

In the preferred form of the invention, there is employed a plurality of pipes'l and 2 of small diameter;

said pipes being in zig-zag form, as will be readily seen in Figs. 2 and 3, and said pipes being all formed pre cisely alike, so that they may be placed in juxtaposition to each other right and left, as will be plainly seen in Fig. 2. Each oi the pipes is provided at each end with a gland consisting of a metallic ring 3 into which the pipe ends are threaded, said pipe ends occupying preferably a radial relation to said glands, and the glands being disposed in the planes of the edges of the zigzag convolutions of the pipes; thus enabling the pipes to be placed in very close juxtaposition and con-.- sequently enabling a large number of pipes, forming a very extended heating surface, to be used. Given a plurality of the pipes, they are arranged in juxtaposition, as shown in Fig. 1, their inclined portions crossing each other right and left, and any desired number of the pipes are so arranged, the glands of alternate pipes being adjacent to and in contact with each other. When the desired number of pipes have been placed together, binding plates, as 4, are placed adjacent to. the outermost glands, and said binding plates are connected by means of bolts 5, thus binding or securing the pipes together. Gaskets 6 of rubber, or other suitable material, are interposed between the individual glands so as to make water and steam tight joints, and the said glands and gaskets cooperate to form the headers two of which, 7 and 8, are at the lower end of the structure, while the other two headers, 9 and 10, are disposed at the upper end of the structure.

The entire structure is preferably disposed within a heater casing 11 of any suitable construction, although it is preferred that the side walls of said casing be corrugated in order to conform to the zigzag shape of pipes; this casing may be made of cast iron and suitable provision will be made for separating the parts of said casing, so that the pipes may be conveniently placed therein and so that access may be had to said pipes. One or more burner pipes, 12, are also extended into said casing between the water pipes, said burner pipes being connected with a source of gas supply through a pipe 13 having a controlling valve 14; said pipes being 15, may be supported beneath each, except the lowermost, burner pipe.

, p In Fig. 1 of the drawings, a radiator has been conven- 'tionally shown, said radiator being composed of any desired number of units 16. The binding plates 4 at the ends of the several headers'are to be provided whereever necessary with internally threaded perforations, in order that the proper connections may be made.

Under the arrangement shown in Fig. 1, header, 7, is connected at its end, which is distant from the radiator, with the source of water supply through a valved pipe 17. After the radiator and both headers have been filled the pipe 17 is closed and the water is heated The water then ascends through the pipes 1 connected with the header 7 to the header 10, which is connected with the radiator through a pipe 18. The lower end of the radiator is connected through a pipe '19 with the lower header 8, and the water ascending through the pipes 2 passes into the header 9 which is connected with the radiator through a laterally extending branch pipe 20, or it may be connected with other radiators through a pipe, a small portion of which has been indicated at 21 in Fig. 1. It will thus be seen that when the gas is ignited and the water supply is turned on, a regular circulation will be established whereby the water in the radiator, or radiators, will be quickly raisedto a degree of heat which may be regulated by the intensity of the flame, or flames, to which the heating pipes are exposed. This circulation is established from the header 7 through the pipes 1 to the header 10 and thence into the radiator by way of pipe 18. The water circulates downward through the radiator and into the header 8 and thence through the pipes 2 to the header 9 and back into the radiator through the pipe 20; This circulation is maintained through the apparatus and as the water is compelled to pass through both sets of pipes l and 2 it will obviously be heated quickly to a high temperature. Of course where the heater is connected to more than one radiatorthe pipe 21 is opened so that the heated water instead of circulating only through one radiator will flow through the entire circuit of radiators and then return to the heater to be reheated. It is preferred to provide the heater casing 11 with an exit flue 22 through which the products of combustion may be conveyed to a chimney or other final exit. When it is desired to utilize the device for water heating purposes only, the top headers 9 and 10 are suitably connected with each other. As shown in Fig. 4, the parts may be connected by means of a transverse pipe 23 connecting two auxiliary glands 24 at one end of said headers.

. The ends of the latter are tightly closed by means of binding .plates 25. Of the lower headers, one is connected with a source of water supply through an inlet pipe 26 at one end, and the other header is provided at the opposite end with an exit pipe 27. Under this construction the water under pressure will enter the header 7, ascend through the pipes 1 to the header 10, pass through the pipe 23 into the header 9, and descend throughthe pipes 2 to the header 8 from which the hot water may be drawn through the pipe 27.

Under the modified construction illustrated Fig. 5 of the drawings, a pipe 28 -is bent or convoluted in what maybe termed a double zig-zag form, the ends of the pipe being disposed adjacent to each other and each provided with a gland, as 29. When a suitable number of pipes of this form are assembled, the glands are connected to form two headers, each of whichis to "be closed at one end while the other end is open to the source of supply, or to the exit as the case may be. For water heating purposes, this form will sometimes prove preferable, as it is considered simpler and less expensive. I

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this invention will-be readily understood by those skilled in the art to which it appertains. By the improved constructionshown and describedpthc capacity of a heater maybe very easily regulated by adding to or subtracting from thenumber of pipe units utilized in the construction. The pipes within the casing 11 will receive the full benefit of the gas jets or other heating medium employed, and said pipes being of relatively small diameter and alarge number being employed, the surface exposed to the action of the heating medium will be very considerable.

Having thus described the invention, what i claimed is v 1. In a Water heater a. plurality of pipes of zigzag form each provided at its ends with glands, and said glands combining to form headers, means for assembling and connecting the glands, in combination with a casing, and a burner pipe supported between the zigzag portions of the water pipes adjacent to a point where said pipes cross each other.

2. In a water heater a plurality of pairs of pipes ofzig zag form provided at the ends thereof with glands combining to form headers, the pipes of each pair being placed right and left across one another, and means for assembling and connecting the glands, in combination with a casing and a burner pipe supported between the zigzag portions of the water pipes and adjacent to a point where said pipes cross each other.

3. A water heater having a plurality of pipes arranged in pairs and provided at the ends thereof with glands combining to form headers at the ends of said pairs of pipes, means connecting the headers at the lower ends of the pipes, and means connecting the headersat the upper ends of the pipes, respectively, with a source of supply and with an exhaust.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

HENRY C. LEYDORF.

Witnesses:

FREEM iN E. Bownns, L. F. HECHLER. 

